upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 474

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

(n = 0, 1)
(8)
Caution:
474
Symbol
CSILn
CSLV3 - CSLV0
Queued CSI Data Length Selection Registers (CSIL0, CSIL1)
The CSIL register is an 8-bit register that specifies the active voltage level of the Chip Select pins
and the Queued CSI data length.
This register can be read or written in 1-bit and 8-bit units.
This register can be overwritten only while CTXE = 0 and CRXE = 0 (CSIM register). Write opera-
tion during CTXE = 1 or CRXE = 1 is prohibited.
Initial value is 00H by reset.
See section 14.3.3 ”Data Length Select Function” on page 478 for further explanation on the
data length selection.
CCL3
Figure 14-9: Queued CSI Data Length Selection Registers (CSIL0, CSIL1) Format
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
CSLV3 CSLV2 CSLV1
0
1
Rewriting this register is only permitted when CTXE = 0 and CRXE = 0.
7
CCL2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
6
Chip Select signal is active low
Chip Select signal is active high
CCL1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
5
Chapter 14 Queued CSI (CSI30, CSI31)
CCL0
CSLV0
User’s Manual U16702EE3V2UD00
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
4
Data length is 16 bits
Setting prohibited
Data length is 8 bits
Data length is 9 bits
Data length is 10 bits
Data length is 11 bits
Data length is 12 bits
Data length is 13 bits
Data length is 14 bits
Data length is 15 bits
CCL3
Chip Select active level selection
3
CCL2
2
Transfer data length
CCL1
1
CCL0
0
FFFFFD49H,
FFFFFD69H
Address
R/W
R/W 00H
reset
After